If your destination is east of Village Center Drive (shown in blue), use Yorba Linda Boulevard/Weir Canyon Road from the Riverside Freeway to get to and from your destination. If your destination is west of Village Center, use Imperial Highway to the greatest extent possible to get to and from your destination.
Mouth ulcers are caused by many disorders. These include: 1  Canker sores. 2  Gingivostomatitis. 3  Herpes simplex (fever blister). 4  Leukoplakia. 5  Oral cancer. 6  Oral lichen planus.
Several things can cause mouth ulcers: 1  viral infections like cold sores or hand, foot and mouth disease. 2  oral thrush. 3  injuries like biting, burns or rubbing from braces.  low vitamin 1  levels. diseases like coeliac disease or inflammatory bowel disease.